Mechanical characterization of the varian Exact-arm and R-arm support systems for eight aS500 electronic portal imaging devices

• Published in: Medical physics (Lancaster) Vol. 37; no. 4; p. 1707
• Main Authors: Grattan, Mark W D, McGarry, Conor K
• Format: Journal Article
• Language: English
• Published: United States 01.04.2010
• Subjects: Calibration; Computer Simulation; Electronics, Medical; Equipment Design; Humans; Particle Accelerators; Radiation Dosage; Radiometry - instrumentation; Radiometry - methods; Radiotherapy - instrumentation; Radiotherapy - methods; Radiotherapy Planning, Computer-Assisted - methods; Reproducibility of Results

The aim of this study is to compare the positioning accuracy at different gantry angles of two electronic portal imaging devices (EPIDs) support arm systems by using EPID difference images as a measure for displacement. This work presents a comparison of the mechanical performance of eight Varian aS...